EMS Technologies Canada Ltd. HSD-400 Manuale Utente

Using mobile-to-mobile calling requires additional information. You need to know the 
IMN of the device or service on the aircraft you are calling. If your service provider 
does not support Inmarsat's Single Network Access Code (SNAC) 870, you also need 
to know the current Satellite Ocean Region of the aircraft you are calling. Table 2-9 
lists the SNAC code and the Satellite Ocean Region numbers.

If SNAC is unsupported, use the Ocean Regions Number that the aircraft (based on 
its projected flight path) is probably logged on to. If the call fails to connect to the 
aircraft, re-try the call using an alternate Ocean Region Number. 

 Figure 2-3 illustrates the Mobile-to-Mobile dialing sequence.

This section provides a basic overview of the requirements for making data connections 
using the HSD-400 terminal.

Refer to the HSD Setup Guide (MN-1110-10048) for instructions on configuring dial-up 
networking connections.

Single Network Access Code

870

Atlantic Ocean Region East (AOR-E)

871

Atlantic Ocean Region West (AOR-W)

874

Pacific Ocean Region (POR)

872

Indian Ocean Region (IOR)

873